I have one of these baskets. This might be what you're looking for? But, you will need the KK rotisserie rod for it.
https://www.amazon.com/only-fire-Rotisserie-Basket/dp/B07CDR3DJ4
I cheat and buy corned beef briskets when they go on sale right after St. Pat's day. Rinse off their spices and coat with the coarse black pepper and coriander seeds.
The blend is called "Ras El Hanout" - which means "top of the shelf." The best spices that a shop sells. Typically contains a LOT of ingredients (up to 20-ish), including flower petals (roses, etc.) It's usually doesn't have the same heat level as a Berbere. Everyone has their own blend for it, so you might have to look around to find one that hits the mark for you. These folks might be a good start for you.
https://www.amazon.com/Ras-El-Hanout-2-0-Oz/dp/B000FVCVS8/
A quick search discovers the reason for your "find" at the clearance shop - none of the 3 sauces are being made right now. Not available on their website nor on Amazon. 😪
You usually see it presented upright in a ring with those poofy chef's hats on the ends of the bones, typically stuffed with something in the middle. Crown Roast of Pork.
Nailed it!
Plus, the outcome is not as dependent on the time & temperature as we think. That's why we tell new folks DON'T CHASE THE TEMPERATURE! You just get frustrated trying to hit an exact target and in the end, it really doesn't matter that much. As the old saying goes, Close Enough for Government Work!
I made my KK available to my neighbors when we got hit by the derecho and our power was out for almost a week. Fortunately, I had a couple of full bags of charcoal and several boxes of cocochar, as a back-up. Others in the neighborhood with grills pitched in, too. It was comforting knowing that we all could pitch in and help out anyway that we could.
As @MacKenzie said, I learned that trick a while back from the old POSK forum. Turn the thermometer to where your target temperature is at high Noon. You can quickly see where you are relative to your target, even from a distance. I can just look out the window from the kitchen to check on it. I don't use the clip. Mine doesn't move around on its own for whatever reason.